Porcelain mixing tray for dental use



FIG. 1 is a top and front perspective view of a porcelain mixing tray for dental use showing my new design;

FIG. 2 is a bottom and front perspective view thereof on an enlarged scale;

FIG. 3 is a front elevational view thereof; the rear elevational view being identical;

FIG. 4 is a top plan view thereof;

FIG. 5 is a bottom plan view thereof;

FIG. 6 is an exploded front elevational view illustrating the lid and base portions thereof;

FIG. 7 is a top plan view of the base portion thereof;

FIG. 8 is a bottom plan view of the base portion thereof;

FIG. 9 is a top and front exploded view thereof on an enlarged scale;

FIG. 10 is a bottom and front exploded view thereof on an enlarged scale; and

FIG. 11 is a top and front exploded view of a second embodiment thereof, on an enlarged scale, differing from the first only by the inclusion of another base portion. 

The ornamental design for a porcelain mixing tray for dental use, as shown and described. 